如何获取Web服务的状态

Question

我正在尝试使用此链接中给出的逻辑来获取Web服务的状态 webservice status

try
        {
            var myRequest = (HttpWebRequest)WebRequest.Create(url);
            NetworkCredential networkCredential = new NetworkCredential("UserName", "password","domain");
            // Associate the 'NetworkCredential' object with the 'WebRequest' object.
            myRequest.Credentials = networkCredential;
            var response = (HttpWebResponse)myRequest.GetResponse();
            if (response.StatusCode == HttpStatusCode.OK)
            {
                //  it's at least in some way responsive
                //  but may be internally broken
                //  as you could find out if you called one of the methods for real
                MessageBox.Show(string.Format("{0} Available", url));
            }
            else
            {
                //  well, at least it returned...
                MessageBox.Show(string.Format("{0} Returned, but with status: {1}", url, response.StatusDescription));
            }
        }
        catch (Exception ex)
        {
            //  not available at all, for some reason
            MessageBox.Show(string.Format("{0} unavailable: {1}", url, ex.Message));
        }

但我面临的问题是，当服务返回200以外的HTTPStatus代码时，代码会转到异常块。

如果我有10个Web服务的列表，如果我正在运行foreach循环并为每个URL执行此代码，并且由于我的第3 /第4服务的某些原因返回500，代码将进入异常块并返回并且错误。

请建议我如何克服这一点。

由于